Hiding details on a private network only delays or denies assistance.
Show the output of 'ifconfig -a'.

Hi gerald

NetworkManager is not running on the relevant system, it is a headless machine without any Desktop GUI
I cant restart the network because i will lose the ssh connection.
Nevertheless if i add the ip address "by hand" it works, meaning the interface gets the ip but if i restart the system it then fails to get the ip address.

I don`t really understand the "hidding detailsd on private networks" means but as you requested here is the output of ifconfig -a

The system has 3 NIC and i am using heartbeat hence the ip-aliases above. This was working fine for about a year up until yesterday. As you can see the alias ip does get assigned the designated ip but not the actual interface which is weird.

TrevorH wrote:Your ifcfg file should have a HWADDR= line in it with the MAC address from your ifconfig output in it

all other ifcfg-ethx files do not have the HWADDR parameter on their config files and working fine without any issues. Thing is that i dont have any indication on logs or messages in order to troubleshoot